The Life Cycle of a Star

Star life cycle Our sun is a perfect example of a star with many stars in the universe. It is one of the tens of billions of stars in our galaxy and our galaxies are among the billions of galaxies in space. For a long time, stars have long life of millions, billions and hundreds of billions, so we can not truly observe the life, birth, life and death of stars. In determining the life cycle of a star, astronomers will observe many of the billions of stars around us, look at them at various stages of their lives, and summarize the evolution of the stars.

On the right side of the figure there is a huge star life cycle (more than ten times the size of the sun). Like low mass stars, high quality stars are born in the nebula, evolve, and survive in the main line. However, after the Red Giant stage, their lifecycle begins to be different. An explosion of a superstar occurs in a huge star. If the rest of the explosion is 1.4 to 3 times that of the sun, it will be a neutron star. The center of a massive star with more than three times the mass of the sun after the explosion will be completely different. Gravity overcomes the nuclear forces that prevent protons and neutrons from combining. Therefore, the core is swallowed by its own gravity. It now easily becomes a nearby one and a black hole attracting energy. What happens between the red giant stars and the supernova explosion is as follows.

Black hole is a natural result of general relativity, essential to astronomy to understand the life cycle of stars and galaxies. They have driven us to accept strange concepts in the past; they will see if they lead us to new physics in the future. At the same time, they are one of the most interesting ones among destructive creators of astronomy, beauty and miracles.